Car-truck side frame.



J. A. LAMONT.

CM TRUCK SIDE FRAME.

APPLICATION msn "n.22, |915.

Patented 06h 26,1915.

JUHN .de LUNT, OlF GRANITE CITY, ILLINOIS, ASSIGNOR T0 .AMERICAN STEEL RIES, OF NEW YOK, N. Y., A CRPORATXON 0F NEW JERSEY.

CAE-TRUCK SIDE FRAME.

Specication of Letters Patent.

Patented Giet.. 26, jmt.

To all 'whom it may concern.'

Be it known that l, JOHN A. LAMONT, a citizen of the United States, and resident of Granite City, in the county of Madison and State of lllinois, have invented certain new and useful lImprovements in Car-T ruck Side Frames, of which the following is a specification.

lily invention relates to railway cars, and has particular reference to a novel built-up side frame for use in connection with car trucks.

An object in the construction of the present device is to provide for economy ink cost of construction. IThis economy is the result of the use of commercial rolled sections which are fabricated to form a substantially integral side frame structure. j

A further object is to lessen the weight of such structures by so disposing the metal thereof that the greatest possible resistance is secured with minimum weight. ln the present structure the principal parts of the truss, nameiy-the compression and tension members, are formed from commercial rolled shapes, the remainder of the parts 'being formed by casting in steel or malleable iron.

rlhe invention will be more readily understood by reference to the accompanying drawings, wherein- Figure 1 is a side elevation of a portion of a side frame constructed in accordance with my invention, Fig. 2 is a fragmentary elevation of a slightly modified form, Fig. 3 shows a still further modification, and Fig/l is a plan view of the construction shown in Fig. 3 with the compression member removed.

lin the drawings, the compression member 10 is indicated as formed from a rolled channel, the flangesof the channel in Fig. 1 being sheared ofi" at 11 to lie against an inclined shoulder 12 formed on a casting 13, which serves to secure the ends of the truss. Between the two flanges or shoulders 12, which serve as a bearing for the anges of the channel, I provide a recess within which a portion 14 of the web of the channel is accommodated. lllhis portion of the web is bent upward into line with the tension member, and the end 15 of the web is bent back upon itself to increase the thickness at that point. The tension member is of T-shape, having a flange 16 and a web 17. The flange is sheared ofil at the point 18, the 'web continuing and its end 19 being bent around the end 15 of the compression member. Thus it will be seen that the tension member continues straight from the strut to the bearing end of the member. A rivet 20 is passed through the tension and compression members and casting.- The casting 13 is provided with a recess, so shaped as to properly lit the tension member, and above the tension member, at a point adjacent to the junction of the tension and compression members, l provide an extension 21 of the casting which lies against the web of the compression member and is secured thereto by suitable rivets 22. The casting is likewise provided with jaws 23, between which ajournal-box may be accommodated, although it will be understood that l may prefer to form the journaln box integral with the casting. The strut for the truss comprises two columns 24 which serve as bolster guides. i j

In the construction of Fig. 2, thev compression member '25 is likewise of channel form, its flanges abutting against a shoulder 26 formed on a casting 27. The web 28 of the channel continues beyond the end of the flanges. rlhe tension member in this instance is shown as of rolled channel form, the flanges 29 thereof being sheared od', as indicated by the dotted line 30, the web 31 being bent into the plane of the web of the channel, as indicated at 32, thence bent or hooked around the end of the web of the compression member, as indicated at 33. 'llhe casting 27 is otherwise much of the same form as that shown in Fig. 1, jaws 34 being provided within which the journal-box is accommodated. The use of the channel section as a tension member facilitates the use of rivets 35 for attaching the Hanges of the member to the casting.

ln Fig. 3 the construction is quite similar to that shownv in Fig. 2, except that the compression member 36 is cut od' square at its ends and abuts against the shoulder 37 on the casting 38. The tension member is likewise of channel section, and its web 39 is bent into the plane of the compression member, its end 40 being bent up against .but not around the compression member. f ln order to secure proper holding engagement,

I may provide the rivet 11 for securing the three elements together.

The construction shown provides for the theoretically correct disposition of metal to ica tiri)V best resist strains. The use of economical rolled or pressed sections for the main mem bers of the truss and the use of a steel casting for the portion of the frame requiring rigidity results in a structure which 1s not readily broken, is light in weight and very economical in first cost. l

It will be understood that Wherever I have referred to the. use of rolled shapes that pressed shapes might be used with equal facility and that therefore I consider the terms rolled and pressed as synonymous.

I claim:

1. In a side frame, the combination of a compression member of channel shape and a tension member of T shape, the ends of said members being brought into engagement, the vertical web of the T being sheared off at the ends of the compression member,

' the web. of the tension member being bent upward to form' an abutment for"`the end of the compression member, and a pedestal casting with which said members coperate at their ends, the tension member being fitted into an opening through said casting, substantially as described.

2. In a side frame, the combination of a channel-shaped compression member,.and a T-shaped tension member, a pedestal casting uniting the members at their ends, said casting belng provided with a diagonal aperture for the accommodation of the tension member, the web of the tension member being sheared of at the end to permit the same to lie against the compression member, the

extreme end of the tension member being bent up to form an abutment for the compression member, the web of the compression member being united to a web ofsaid casting, substantially as described.

Signed at Granite City, Illinois, this 7 day of April, 1915.

JOHN A. LAMONT. Witnesses:

W. G. LANGENBACH, G. Som SMITH. 

